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Radiator Clang. What causes it?

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BirchLeaf
BirchLeaf Member Posts: 56
in Strictly Steam
Hello,
What causes steam radiators to make occasional clanging noises?
(It's a different sound than the loud banging of steam coming in contact with water.)
Thank you.

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  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,545
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    Water or the radiator expanding. something slippery under the feet like pieces of a milk bottle. or the pipe could be rubbing if the hole in the floor is too small
    BirchLeaf
  • BirchLeaf
    BirchLeaf Member Posts: 56
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    @EBEBRATT-Ed
    Expanding from heat entering the radiator?
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,545
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    yes
    BirchLeaf
  • retiredguy
    retiredguy Member Posts: 907
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    If the valve has a flat disc, the disc could have come loose or has broken off from the stem.
    BirchLeaf

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